Joseph w



, (No Model.)

' J. W. BUDD.

SPARK ARRESTER.

Patented Oct; 24, 1882.

@mmea %rants PATEN *r @i atoa JOSEPH w. BUDD, or NEW YORK, N. Y.

SPARK-ARRESTER.

SPECIFICATION formng part of Letters Patent No. 266,427, dated October 24, 1882.

Application filed November 23, 1881. (No model.)

To all whom it may concern Beit kuownthat I,JosEPH W.BUDD,ot'New York city ,iu the countyand State ot'New York, have invented a certaiu new and Improved Spark-Arrester, ot` which tle following is a specification.

Tle Object of' the invention is to secure an active drat't in the furnace controllable at will, and to suppress entirely tle enission ot'sparks, and to a great extent avoid the discharge ot" smolte.

I employ a blower nounted i the passage through which the exhaust products ot' combustion flow after their production in the furnace. The action ot' the fan or other blower induces a draft in the i'urnacc proportionately to the speed with which the hlower is operated. The gases, at'ter their passage through the blower, are discharged into the upper portion of a chamber or vessel partia-lly filled with water. An iuclined strainer ot'wire-cloth or other foraniinous material is mouutcd in the upper portion ot' the clamber, so as to positirely prohibit the movement of large sparks along the air-passage over tle water. The momentum with wlicl the sparks are deliyered downward into the chamber is usually sufticient to insure their projection into tle water. The inclined strainer adds to the certaiuty with which tlis end is attaiued. The bottom ot' the chamber is properly formcd and equipped with a valve through which the water may be discharged at intervals, afresh supply beig al'terward introdnccd by any ordinary or suitable means.

The acconpanying drawings form a part of this specitication, and represent what I consider the best means of carrying out the in- Vention.

Figure 1 is an elevation partly in section. Fig. 2 is a plan View.

Similarletters ot'ret'erence indicate like parts in both the figures.

A is a boiler of the locomotive type, mounted on m asonry with an ample ash-pit. The access ofair to the latter may be controlled by a door, (not represented,) if desired.

B is au uptake-pipe, through which the gases are discharged from au ordinary Smoke-box (not represented) at the back end of the hoiler, and B' B are branches thereof, controlled by tight-shutting valyes b b The branch B' leads to the center D of the easing lot'a fau-blower, which, it will be understood, is driveu at a high velocity by a belt, l, running upon a conical pulley, on', on the shait m, from a reversed Gone-pulley (not representcd) driven by an engine. The t'an blows the gascous products ot' combustion through a pipe, C', Vertieallydown` ward into one end ot' the top of a sufliciently capacious chamber, E, which is kept about half-tilled with water. From 'the opposite end of the top a dischargepipe, F, conducts the gases to a sufticient height and liberates them in the atmosphere.

About the nid-length of the chamber E is an inclined strainer, G, which extends from the top down 'something below the middle height. It is sufficiently open to allow a free passage for the gasembut all large sparks are arrested thereby. The bottom of the chamber E is inclined, as shown. To the lowest point in the bottom is connected a discharge-pipe, H, controlled by a tight valve, l.

The t'an within the casing O is mounted on the shat't m, and is driveu at a higher or lower Velocity, according as the belt I is shifted from one position to another on the conical pulley m'. This change ot' position is efl'ected by a shipper, J, which nay be controlled by hand, or by a loaded diaphragm or other automatic device operated by the changes of pressure ot' the steam in the hoiler A; When the belt I runs on the smallestportion of the pulley m' the velocity of the fan is the highest, and the efi'ect of the tan is very powerful in inducing a partial vacuum in the 'urnace and stimulating the fire by a strong current of fresh air rising upward from the grate through the t'nel, as will be understood. When the belt I is successively shifted to dili'erent positions nearer the large end of the pulley the Velocity of the fau is redueed, and the efl'ect on the combustion is less. The gaseous products are discharged from the fan with the high or low Velocity, due to the position of theshipper J. Whatever their velocity, they are projected directly downward into the partially-filled water-chamber E. The solid particles or'sparks by their momentum, as also by their gravity, are .thrown directly downward into the Water. The Smoke, if any be present,is also exposed to a large surface of water, and is partially condensed. The gases thus freed in great part 'from any solid matter contained therein move along the nper portion of the chamberE, and escape 'l'reely through the stack F.

The screen or strainer G extends across tle entire gas-passage in the chamber E, and arrests any sparks whicl may chance to he carried along* by the strong d 'aft without being' caught by the water. The inclined position of the screen causes the spa'ks to fall downward from the screen after their notion is arrested.

The branch B from the uptake B leads directly to a stack, K, through whicl tle gases ay be discharged into the atnosphere in the ordinary manner, when desired, by simply Opening' tle valve b and Closing the Valve b'. hen the apparatns is to be so worked the hlower U may be stopped; or, if it is allowed to run, tle hlower and train of conneeted passages, including' the wate vessel E, will be of no ett'ect.

Moditications may be made in the details.

The style of the boiler may be varied indetinitely.

The valves b' b may be simply tight-fitting dampers.

The blower may be Varied by the substitntion of any form ot' blowing device which is adapted to endnre the temperature which is liable to sometimes obtain in the gases.

Parts of the invention may be used without the whole.

I can lead the dischargepassage F into the stack K, as indicated i dotted lines.

I can utilize a portion of the heat of the gases by passing them through radiators of any ordinary or snitable construction, being impelled by the blower 0.

I claim as my invention 1. The inclined strainer (Jr, mounted in the partially-filled water-chamber E, set trans- Versely across and covering the entire space above the water, i conbination with the boiler A, blowcr O, and connecting-passages B' C' F, as herein specified.

2. The b'anch passages B' B witl their controlling' means b' IP, leading the one directly to a stack, K, and the other through the blower C, in combiation witl each other and with the partially-filled water-chamber E and passage F, as herei specified.

3. The partially-tilled water-chamber E and inclined foraminons screen G, arranged in the passage between the boiler A and a tlue, F, discharging* into the atnosphere, in combination with the blower C, coe pulley m', helt 1, and shit'ter J, so as to vary the draft through the same, as lerein specified.

In testimony whereof l have lerennto set my hand, at New York city, in tle presence ot' two snbscribing witnesses.

JOSEPH W. BUDD.

Witnesses:

GHARLES R. SEARLE, W. li. BENNnM. 

